July 17 (Reuters) - BHP Group on Wednesday posted a 6% rise in fourth-quarter iron ore production, helped by improved weather conditions and higher contribution from its South Flank operations in Western Australia.

The world's largest listed miner said iron ore output from Western Australia on a 100% basis was 76.8 million tonnes (Mt) in the three months to June 30, beating a Visible Alpha consensus estimate of 75.4 Mt as compiled by Macquarie.

The global miner had recorded Western Australia iron ore output of 72.7 Mt last year. (Reporting by Echha Jain and John Biju in Bengaluru; Editing by Maju Samuel)